<template>
  <div id="app">
    <div id="nav">
      <router-link to="/">Home</router-link>|
      <router-link to="/about">About</router-link>|
      <router-link to="/login" v-if="!isLogin">Login</router-link>
      <a @click="logout" v-if="isLogin">Logout</a>
    </div>
    <router-view />
  </div>
</template>
<script>
import { mapGetters } from 'vuex'
export default {
  computed:{
    // isLogin(){
    //   return this.$store.getters.isLogin
    // }
    ...mapGetters(['isLogin'])
  },
  methods: {
    logout() { // 接口 登出
     this.$http.get('/api/logout')
    }
  },
};
</script>
<style>
#app {
  font-family: "Avenir", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
}

#nav {
  padding: 30px;
}

#nav a {
  font-weight: bold;
  color: #2c3e50;
}

#nav a.router-link-exact-active {
  color: #42b983;
}
</style>
